B88069X2890C102

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Gas Discharge Tube Arresters (GDT) are devices used to protect electronics or electrical equipment from lightning or switching surges. The most common type of GDT is the so-called “B88069X2890C102.” In this device, an aluminum oxide ceramic tube is filled with argon and a noble gas such as neon, krypton, or xenon. This mixture of gases works together to create a “zener barrier” - a voltage dependant conductive path when lightning, switching surge, or an electrical transient passes through it.

The B88069X2890C102 operates on the principle of an over-voltage protection circuit. When an over-voltage occurs, the device\'s internal parts act as a short-circuit and the current is diverted from the line. At the same time, the voltage drop across the tube increases and starts the avalanche breakdown. This process creates a spark in the gap which dissipates the energy from the over-voltage pulse. When the energy is dissipated, the device returns to its normal operating condition.

The primary application of the B88069X2890C102 is to protect telecom systems, such as telephone and data lines, from lightning. These devices are often installed between the telephone line and the customer premises equipment (CPE). This is because lightning may cause an extremely high current of up to 200 kA to flow through the line, which can destroy unprotected circuitry. The GDT protects the equipment by diverting most of the current away from the line.

The B88069X2890C102 is also used to protect other electrical equipment from transients and surges. These devices can be used in both single-phase and three-phase applications. The device can be directly connected to the ac power line in order to protect the network components. Moreover, it can also be used in conjunction with other surge protection devices such as automatic transfer switches and power conditioners.

In conclusion, the B88069X2890C102 is a Gas Discharge Tube Arrester (GDT) designed to protect electronic equipment and systems from lightning and other over-voltage transients. It operates on the principle of creating a zener barrier by combining a noble gas and an aluminum oxide ceramic tube. It is mainly used in telecom systems to protect against lightning and in other electrical systems to protect against transients and surges.

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